Remote control of electrical appliances via power line 230V

Abstract

The presented work deals with problems of data transfer via power line 230 V for the purposes of remote control electrical appliances. The devices providing relative communication via power line for a one-family house were designed and assembled. The designed devices, namely the input-output unit, PC interface and the GSM gate, work on a bus principle. The bus is constructed by power line 230 V. The designed devices are composed of the AVR microcontrollers and their mutual communication via power line is provided by TDA5051AT modem. Communication protocol, with which the devices work, was developed so that it corresponds with hardware resolution of particular devices. The particular devices were practically implemented and their activity was tested.